Author: Nicolas Legrand nicolas.legrand@cfin.au.dk

import os
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
import numpy as np
import plotly.graph_objects as go
import plotly.express as px
from plotly.subplots import make_subplots
from systole.detection import oxi_peaks
from systole.plotly import plot_subspaces, plot_raw

import plotly.io as pio
pio.renderers.default='notebook'

sns.set_context('talk')

Heartbeat Counting task - Summary results

Import data

path = 'C:/Users/au646069/ECG/1_VPN_aux/'
subject = 'sub_0019'

# Parameters
subject = "sub_0020"
path = "C:/Users/au646069/ECG/1_VPN_aux/"

resultsFiles = os.listdir(os.path.join(path, subject, 'HBC'))

# Logs dataframe
df = pd.read_csv(os.path.join(path, subject, 'HBC', [file for file in resultsFiles if file.endswith('final.txt')][0]))
df

	nTrial	Reported	Condition	Duration	Confidence	ConfidenceRT
0	0	29	Count	45	3	8.616
1	1	26	Count	40	4	3.026
2	2	17	Count	30	3	4.714
3	3	16	Count	25	5	6.358
4	4	32	Count	50	2	1.625
5	5	36	Count	35	5	4.897

# PPG signal
ppg = {}
for i in range(6):
    ppg[str(i)] = np.load(os.path.join(path, subject, 'HBC', f'{subject[4:]}_{i}.npy'))

Trial 1

signal, peaks = oxi_peaks(ppg['0'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[0]} ; Detected : {np.sum(peaks)}')

Reported: 29 ; Detected : 59

Trial 2

signal, peaks = oxi_peaks(ppg['1'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[1]} ; Detected : {np.sum(peaks)}')

Reported: 26 ; Detected : 55

Trial 3

signal, peaks = oxi_peaks(ppg['2'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[2]} ; Detected : {np.sum(peaks)}')

Reported: 17 ; Detected : 43

Trial 4

signal, peaks = oxi_peaks(ppg['3'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[3]} ; Detected : {np.sum(peaks)}')

Reported: 16 ; Detected : 39

Trial 5

signal, peaks = oxi_peaks(ppg['4'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[4]} ; Detected : {np.sum(peaks)}')

Reported: 32 ; Detected : 70

Trial 6

signal, peaks = oxi_peaks(ppg['5'][0])
rr = np.diff(np.where(peaks)[0])
plot_subspaces(rr=rr, height=500)

plot_raw(signal, sfreq=1000)

print(f'Reported: {df.Reported.loc[5]} ; Detected : {np.sum(peaks)}')

Reported: 36 ; Detected : 48